Patents by Inventor Seiichi Takeda

Seiichi Takeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for producing a clad plate
    Patent number: 4936504
    Abstract: The present invention provides a process for producing a clad plate which comprises a first step of forming a coil by taking up two or more metal sheets as clad materials and a thin sheet of heat-resistant steel which works as a separator material while these members are overlaid on one another and a second step of vacuum heat-treating the resultant coil.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: June 26, 1990
    Assignee: Nippon Metal Industry Co., Ltd.
    Inventors: Hiroshi Arai, Seiichi Takeda, Masahiro Sasaki, Kazuhisa Yokoyama